It might be the down to up perspective messing with me. You seem to start the disc higher in the reach back than you release it. It is a way to compensate for high throws but it's tricky because you can get worm burners all too easily.

When correcting form slow steps are good but you could take slower and shorter steps to help more with the timing and placement. It'll probably rob you some of your distance but gain accuracy. Which often ain't a problem with your power.

Flat shots need running on the center line of the tee and planting each step on the center line. Anhyzer needs running from rear right to front left with the plant step hitting the ground to the left of the line you're running on. Hyzer is the mirror of that.

well, i can't believe you're getting 330'-360' off that 3rd throw. Doesn't mean it's not happening, just always surprises me to see that kind of distance when I see what I believe would be distance inhibiting factors.

1) Major nose up. Your weight is back and your wrist loosens up and the disc pops up about 45 degrees at release.

2) Probably releasing/pulling kinda low. I might shoot for something higher up to under your chin. Like in the area below the chin and above the nipples. See if that helps with the nose up.

3) I don't think you're getting any power from the hips. Try starting the throw with a hip pivot, then as your arm pulls through, increase to 100%, then 120% as you go past your right pec.

4) Looks like you might have some off axis torque - you finish really low, and slowly.

5) I'd find it hard to believe the x-step is improving anything besides rhythm for you. Try for something smoother and momentum inducing. Something that gets you moving towards the hit instead of so methodical.

Obviously, if you're 300'+, something is right. You could be pulling really close to your chest and getting some good snap. That along with some OAT would turn the discs into a good S pattern and give you some reasonable distance.

Mostly it looks like a timing problem. Like brad said, you need to work on building a better rhythm. Watching pros and your own vids back to back will help you emulate their form much easier. It looks like you need to get your weight forward earlier. Lean into the throw before you even run up. Watch david wiggins jr. he has GREAT form for looking at maximizing your whole body's potential. He leans into the throw and his runup is mostly just keeping him from falling forward. You need to really get that weight forward and put it into the disc.

Think about putting all your energy into the disc. Your weight moving forward is a huge source of energy. Its hard to explain, but just think "put my weight INTO it!!!"